Slide rail assembly

ABSTRACT

A slide rail assembly includes a rail element, a first bracket, an extension frame, a second bracket, a blocking element, and an elastic element. The first bracket is mounted to the rail element and configured to be mounted to a first post. The extension frame is movable relative to the rail element. The second bracket is mounted to the extension frame and configured to be mounted to a second post. The blocking element is movably connected to the second bracket. The elastic element is configured to provide an elastic force to hold the blocking element at a first position relative to the second bracket. When the extension frame is driven by the rail element to move along a direction, the extension frame pushes the blocking element to rotate from the first position to a second position, such that the second bracket is detachable from the second post.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. application Ser.No. 14/953,436, filed on Nov. 30, 2015. This application claims thebenefit of U.S. application Ser. No. 14/953,436, which was filed on Nov.30, 2015, and is incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a slide rail assembly, and moreparticularly, to a slide rail assembly capable of being easily mountedto or detached from a rack by a single person when operating in front ofthe rack.

2. Description of the Prior Art

China patent publication number CN102695396B discloses a slide rail toolfree mounting frame for a server, which comprises a pair of framepositioning columns (4) arranged on a slide rail back mounting frame (1)and a frame floating hook (2). The frame floating hook (2) includes apair of hooks (230) respectively arranged on a pair of wings (205),which are respectively provided with slide guide sleeves (201) and arein fixed connection through an ‘arch door’ shaped bending piece (206).The slide rail back mounting frame (1) is fixed with two slide guidecolumns (101), which are sleeved in the slide guide sleeves (201) andare in fixed connection through limit screws (7). First return springs(6) are arranged on the slide guide sleeves (201) between the wings(205) and the limit screws (7). The slide rail back mounting frame (1)is further provided with a floating pin hole (104) for placing afloating pin (3). One end of the floating pin (3) is connected to the‘arch door’ shaped bending piece (206) through the limit screws (7), andthe other end of the floating pin is a conical head (301) arranged inthe floating pin hole (104). Second return springs (5) are arranged onthe floating pin (3) between an end face of the conical head (301) andthe limit screws (7).

According to such arrangement, although the prior art can lock orrelease the slide rail back mounting frame (1) through the floating pin(3) driven by an outer rail of the slide rail covered by a back frame.However, the prior art needs to drive the floating pin (3) to movethrough the outer rail of the slide rail, for lifting the frame floatinghook (2), so as to lock the slide rail back mounting frame (1). But suchlocking operation, which drives the floating pin (3) through the outerrail of the slide rail, may reduce adjustment amount of extension of theslide rail, such that the slide rail is not applicable to racks withdifferent depths, especially to a deeper rack. On the other hand, theprior art discloses a more complex structure, which may cause highercomponent cost and more assembly working hours.

SUMMARY OF THE INVENTION

The present invention relates to a slide rail assembly capable of easilydetaching a bracket from a rack.

According to an embodiment of the present invention, a slide railassembly is configured to be mounted to a first post and a second postof a rack. The slide rail assembly comprises a rail element, a firstbracket, an extension frame, a second bracket, a blocking element and anelastic element. The first bracket is mounted to the rail element andconfigured to be mounted to the first post of the rack. The extensionframe is movable relative to the rail element. The second bracket ismounted to the extension frame and configured to be mounted to thesecond post of the rack. The blocking element is movably connected tothe second bracket. The elastic element is configured to provide anelastic force to hold the blocking element at a first position relativeto the second bracket. Wherein, when the extension frame is moved alonga direction opposite to a direction toward the second post for pushingthe blocking element to rotate from the first position to a secondposition, the second bracket is detachable from the second post.

According to another embodiment of the present invention, a slide railassembly is configured to be mounted to a first post and a second postof a rack. The slide rail assembly comprises a rail element, a firstbracket, an extension frame, a second bracket, a blocking element and anelastic element. The first bracket is mounted to the rail element andconfigured to be mounted to the first post of the rack. The extensionframe is movable relative to the rail element. The second bracket ismounted to the extension frame and configured to be mounted to thesecond post of the rack. The blocking element is movably connected tothe second bracket. The elastic element is configured to provide anelastic force to hold the blocking element at a first position relativeto the second bracket. Wherein, when the extension frame is moved alonga direction opposite to a direction toward the second post for pushingthe blocking element to move from the first position to a secondposition, the second bracket is detachable from the second post.Wherein, one of the extension frame and the second bracket furthercomprises at least one extension hole, the slide rail assembly furthercomprises at least one connection element passing through the at leastone extension hole for movably mounting the extension frame to thesecond bracket and at least one spring connected between the at leastone connection element and the extension frame.

According to another embodiment of the present invention, a slide railassembly is configured to be mounted to a first post and a second postof a rack. The slide rail assembly comprises a rail element, a firstbracket, an extension frame, a second bracket, a blocking element and anelastic element. The first bracket is mounted to the rail element andconfigured to be mounted to the first post of the rack. The extensionframe is movable relative to the rail element. The second bracket ismounted to the extension frame and configured to be mounted to thesecond post of the rack. The blocking element is movably connected tothe second bracket. The elastic element is configured to provide anelastic force to hold the blocking element at a first position relativeto the second bracket. Wherein, when the extension frame is moved alonga direction opposite to a direction toward the second post for pushingthe blocking element to move from the first position to a secondposition, the second bracket is detachable from the second post.Wherein, the second bracket comprises a side plate, an end platesubstantially perpendicularly extended from the side plate, and at leastone mounting element mounted to the end plate, the blocking element ispivoted to the side plate of the second bracket and comprises a contactpart and a blocking part, the elastic element is attached to the sideplate of the second bracket for providing the elastic force to thecontact part of the blocking element, the blocking part of the blockingelement is held at the first position relative to the mounting elementof the second bracket in response to the elastic force of the elasticelement. Wherein, the blocking element further comprises a guidingfeature, the extension frame comprises a contact feature for abuttingagainst the guiding feature of the blocking element, one of the guidingfeature of the blocking element and the contact feature of the extensionframe is inclined, when the blocking element is driven to rotate inresponse to a movement of the contact feature of the extension framewhen abutting against the guiding feature, the blocking part of theblocking element is moved from the first position to the second positionrelative to the mounting element of the second bracket. Wherein, one ofthe extension frame and the second bracket further comprises at leastone extension hole, the slide rail assembly further comprises at leastone connection element passing through the at least one extension holefor movably mounting the extension frame to the second bracket.

The embodiments of the present invention are characterized in that: theslide rail assembly is capable of being easily mounted to or detachedfrom a rack by a single person when operating in front of the rack.

These and other objectives of the present invention will no doubt becomeobvious to those of ordinary skill in the art after reading thefollowing detailed description of the preferred embodiment that isillustrated in the various figures and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of a slide rail assembly according to a firstembodiment of the present invention.

FIG. 2 is an exploded view of a second bracket and an extension frame ofthe slide rail assembly according to the first embodiment of the presentinvention.

FIG. 3 is a diagram showing the slide rail assembly mounted to a rackaccording to the first embodiment of the present invention.

FIG. 4 is a diagram showing a first bracket and a second bracket of theslide rail assembly mounted to a first post and a second post of therack according to the first embodiment of the present invention.

FIG. 5 is a diagram showing the first bracket of the slide rail assemblydetached from the first post of the rack according to the firstembodiment of the present invention.

FIG. 6 is a diagram illustrating an operation (1) for detaching thesecond bracket of the slide rail assembly from the second post of therack according to the first embodiment of the present invention.

FIG. 7 is a diagram illustrating an operation (2) for detaching thesecond bracket of the slide rail assembly from the second post of therack according to the first embodiment of the present invention.

FIG. 8 is a diagram illustrating an operation (3) for detaching thesecond bracket of the slide rail assembly from the second post of therack according to the first embodiment of the present invention.

FIG. 9 is a diagram illustrating an operation (4) for detaching thesecond bracket of the slide rail assembly from the second post of therack according to the first embodiment of the present invention.

FIG. 10 is a diagram showing part of a slide rail assembly according toa second embodiment of the present invention.

FIG. 11 is an exploded view of a second bracket and an extension frameof the slide rail assembly according to the second embodiment of thepresent invention.

FIG. 12 is a diagram showing the second bracket of the slide railassembly mounted to the second post of the rack according to the secondembodiment of the present invention.

FIG. 13 is a diagram showing an operation for detaching the secondbracket of the slide rail assembly from the second post of the rackaccording to the second embodiment of the present invention.

FIG. 14 is a diagram showing part of a slide rail assembly according toa third embodiment of the present invention.

FIG. 15 is an exploded view of a second bracket and an extension frameof the slide rail assembly according to the third embodiment of thepresent invention.

FIG. 16 is a diagram showing the second bracket of the slide railassembly mounted to the second post of the rack according to the thirdembodiment of the present invention.

FIG. 17 is a diagram illustrating an operation for detaching the secondbracket of the slide rail assembly from the second post of the rackaccording to the third embodiment of the present invention.

FIG. 18 is a diagram showing part of a slide rail assembly according toa fourth embodiment of the present invention.

FIG. 19 is an exploded view of a second bracket and an extension frameof the slide rail assembly according to the fourth embodiment of thepresent invention.

FIG. 20 is a diagram showing the second bracket of the slide railassembly mounted to the second post of the rack according to the fourthembodiment of the present invention.

FIG. 21 is a diagram illustrating an operation for detaching the secondbracket of the slide rail assembly from the second post of the rackaccording to the fourth embodiment of the present invention.

DETAILED DESCRIPTION

FIG. 1 is a diagram showing a slide rail assembly 100 according to afirst embodiment of the present invention. The slide rail assembly 100comprises a rail element 102, a first bracket 104, a supporting frame106, an extension frame 108, and a second bracket 110. The first bracket104 is mounted to the rail element 102 to be adjacent to a front end ofthe rail element 102. The supporting frame 106 is fixedly mounted to therail element 102 as a part of the rail element 102. The supporting frame106 has an upper wall 112 a, a lower wall 112 b, and a side wall 114extended between the upper wall 112 a and the lower wall 112 b. Apassage 116 is defined by the upper wall 112 a and the lower wall 112 b.The side wall 114 comprises a first part 118 (such as a bump) arrangedin the passage 116. The extension frame 108 is movably mounted to thesupporting frame 106. Therefore, the extension frame 108 is movablerelative to the rail element 102. At least one part of the extensionframe 108 is correspondingly mounted in the passage 116 of thesupporting frame 106 and capable of moving longitudinally relative tothe rail element 102. The extension frame 108 comprises a second part120 corresponding to the first part 118 of the supporting frame 106. Thesecond bracket 110 is mounted to the extension frame 108, that is tosay, the second bracket 110 is movable relative to the rail element 102,and can move to be adjacent to a rear end of the rail element 102.

As shown in FIG. 2, the second bracket 110 comprises a side plate 122,an end plate 124 substantially perpendicularly extended from an end ofthe side plate 122, and at least one mounting element 126 mounted to theendplate 124. The slide rail assembly 100 further comprises at least oneblocking element 128 movably connected (such as pivoted) to the sideplate 122 of the second bracket 110. The blocking element 128 comprisesa guiding part 130, a contact part 132 and a blocking part 134. Theguiding part 130 has an inclined guiding feature 136. In addition, theslide rail assembly 100 further comprises an elastic element 138attached to the side plate 122 of the second bracket 110. One end of theextension frame 108 is arranged with at least one inclined contactfeature 140 corresponding to the guiding feature 136 of the blockingelement 128. The extension frame 108 further comprises a firstsupporting feature 142 and at least one second supporting feature 144.The first supporting feature 142 is mounted to a fixing hole 148 of theextension frame 108 by at least one first connection element 146. Thesecond supporting feature 144 is connected to the side plate 122 of thesecond bracket 110 by correspondingly penetrating a portion of at leastone second connection element 150 through at least one first extensionhole 152 of the extension frame 108. Another portion of the at least onesecond connection element 150 is blocked at one side of the extensionframe 108, in order to movably mount the extension frame 108 to thesecond bracket 110, such that the extension frame 108 can move relativeto the side plate 122 of the second bracket 110 within a limited rangedefined by the at least one first extension hole 152. Preferably, theextension frame 108 is further formed with a second extension hole 154for allowing a portion of a third connection element 156 tocorrespondingly pass through and to be connected to the side plate 122of the second bracket 110. Wherein, the slide rail assembly 100 canfurther comprise at least one spring 158 correspondingly connectedbetween the at least one first connection element 146 and the at leastone second connection element 150.

As shown in FIG. 3 and FIG. 4, the slide rail assembly 100 is mounted toa first post 160 and a second post 162 of a rack by the first bracket104 and the second bracket 110 respectively. The first part 118 of thesupporting frame 106 of the slide rail assembly 100 corresponds to thesecond part 120 of the extension frame 108 from a predetermineddistance. The elastic element 138 is configured to provide an elasticforce to hold the blocking element 128 at a first position P1 relativeto the second bracket 110. In the present embodiment, the elasticelement 138 abuts against the contact part 132 of the blocking element128 for providing the elastic force to the contact part 132 of theblocking element 128, such that the blocking part 134 of the blockingelement 128 is held at the first position P1 relative to the mountingelement 126 (or the end plate 124) of the second bracket 110 in responseto the elastic force of the elastic element 138. Therefore, the blockingpart 134 of the blocking element 128 corresponds to or faces toward thesecond post 162 to ensure that the second bracket 110 is not detachablefrom the second post 162.

FIG. 5 is a diagram showing the first bracket 104 of the slide railassembly 100 being detached from the first post 160 of the rack.Firstly, a positioning condition between the first bracket 104 and thefirst post 160 of the rack can be removed, such as removing a fixingelement or other type of component (not shown) attached to the firstpost 160. Thereafter, the slide rail assembly 100 is slightly pushed tomove toward the second post 162 of the rack (such as a directionindicated by an arrow shown in the figure), such that the first bracket104 of the slide rail assembly 100 can be detached from the first post160 of the rack.

As shown in FIG. 6, the slide rail assembly 100 is pulled out to movealong a direction F1 (such as a direction opposite to a direction towardthe second post 162), such that the first part 118 of the supportingframe 106 of the slide rail assembly 100 abuts against the second part120 of the extension frame 108.

As shown in FIG. 7, when the slide rail assembly 100 is continuouslypulled out to move along the direction Fl, the extension frame 108 isdriven to move along the direction F1 by the first part 118 of thesupporting frame 106 of the slide rail assembly 100, such that thecontact feature 140 of the extension frame 108 abuts against the guidingfeature 136 of the guiding part 130 of the blocking element 128.

As shown in FIG. 8 and FIG. 9, when the slide rail assembly 100 iscontinuously pulled out to move along the direction F1, since thecontact feature 140 of the extension frame 108 abuts against the guidingfeature 136 of the guiding part 130 of the blocking element 128 at apredetermined position, the blocking element 128 is driven to rotate inresponse to a movement of the contact feature 140 of the extension frame108 when abutting against the guiding feature 136 of the guiding part130, so as to move the blocking part 134 of the blocking element 128from the first position P1 to a second position P2 relative to themounting element 126. Meanwhile, the blocking part 134 of the blockingelement 128 no longer corresponds to or faces toward the second post162, such that the second bracket 110 can be detached from the secondpost 162. Therefore, a user standing in front of the first post 160 ofthe rack can detach the slide rail assembly 100 from the first post 160and the second post 162, so as to allow the user to operate convenientlyand quickly. In another embodiment, the extension frame 108 can also beextended to be adjacent to the first bracket 104 and beyond thesupporting frame 106, for allowing the user to directly pull theextension frame 108 in order to detach the blocking element 128 from thesecond post 162. When a force applied along the direction F1 no longerexists, original relative positions between the extension frame 108 andthe side plate 122 of the second bracket 110 can be recovered by theelastic force of the elastic element 158.

FIG. 10 is a diagram showing a slide rail assembly 200 according to asecond embodiment of the present invention. The slide rail assembly 200comprises a rail element 202, a first bracket (not shown), a supportingframe 206, an extension frame 208, and a second bracket 210. Thesupporting frame 206 is fixedly mounted to the rail element 202 as apart of the rail element 202. The extension frame 208 is movably mountedto the supporting frame 206. The second bracket 210 is mounted to theextension frame 208.

FIG. 11 further shows the second bracket 210 comprising a side plate222, an end plate 224 substantially perpendicularly extended from an endof the side plate 222, and at least one mounting element 226 mounted tothe endplate 224. The slide rail assembly 200 further comprises at leastone blocking element 228 movably connected (such as pivoted) to the sideplate 222 of the second bracket 210. The blocking element 228 comprisesa first guiding part 230, a second guiding part 232 and a blocking part234. The first guiding part 230 has a first guiding feature 236. Thesecond guiding part 232 has a second guiding feature 238. The firstguiding feature 236 and the second guiding feature 238 are inclined indifferent directions. In addition, one end of the extension frame 208 isarranged with at least one inclined contact feature 240 corresponding tothe first guiding feature 236 and the second guiding feature 238 of theblocking element 228. The extension frame 208 further comprises a firstsupporting feature 242 and at least one second supporting feature 244.The first supporting feature 242 is mounted to a fixing hole 248 of theextension frame 208 by a first connection element 246. The secondsupporting feature 244 is connected to the side plate 222 of the secondbracket 210 by correspondingly penetrating a portion of at least onesecond connection element 250 through a first extension hole 252 of theextension frame 208. Another portion of the at least one secondconnection element 250 is blocked at one side of the extension frame208, in order to movably mount the extension frame 208 to the secondbracket 210, such that the extension frame 208 can move relative to theside plate 222 of the second bracket 210 within a limited range definedby the at least one first extension hole 252. Preferably, the extensionframe 208 is further formed with a second extension hole 254 forallowing a portion of a third connection element 256 to correspondinglypass through and to be connected to the side plate 222 of the secondbracket 210. In addition, the slide rail assembly 200 further comprisesan elastic element 258, which can be at least one spring, connectedbetween the first connection element 246 and the second connectionelement 250.

As shown in FIG. 12, the contact feature 240 of the extension frame 208is driven to abut against the first guiding feature 236 of the firstguiding part 230 of the blocking element 228 by an elastic forcegenerated by the elastic element 258, in order to hold the blocking part234 of the blocking element 228 at a first position P1 relative to thesecond bracket 210. For example, the blocking part 234 of the blockingelement 228 is held at the first position P1 relative to the mountingelement 226 (or the end plate 224) of the second bracket 210, such thatthe blocking part 234 of the blocking element 228 corresponds to orfaces toward the second post 262 to ensure that the second bracket 210is not detachable from the second post 262.

As shown in FIG. 13, after detaching the first bracket of the slide railassembly 200 from the first post of the rack (not shown), the extensionframe 208 is pulled out to move along a direction F1 (such as adirection opposite to a direction toward the second post 262) in orderto move the contact feature 240 of the extension frame 208 away from thefirst guiding feature 236 of the first guiding part 230 of the blockingelement 228 to abut against the second guiding feature 238 of the secondguiding part 232 of the blocking element 228 at a predeterminedposition. Meanwhile, the blocking element 228 is driven to rotate inresponse to a movement of the contact feature 240 of the extension frame208 when abutting against the second guiding feature 238, so as to movethe blocking part 234 of the blocking element 228 from the firstposition P1 to a second position P2, such that the second bracket 210can be detached from the second post 262. According to such arrangement,a user standing in front of the first post of the rack can detach theslide rail assembly 200 from the first post and the second post, so asto allow the user to operate conveniently and quickly.

FIG. 14 is a diagram showing a slide rail assembly 300 according to athird embodiment of the present invention. The slide rail assembly 300comprises a rail element 302, a first bracket (not shown), a supportingframe 306, an extension frame 308 and a second bracket 310. Thesupporting frame 306 is fixedly mounted to the rail element 302 as apart of the rail element 302. The extension frame 308 is movably mountedto the supporting frame 306. The second bracket 310 is mounted to theextension frame 308.

FIG. 15 further shows the second bracket 310 comprising a side plate322, an end plate 324 substantially perpendicularly extended from an endof the side plate 322, and at least one mounting element 326 mounted tothe endplate 324. The slide rail assembly 300 further comprises at leastone blocking element 328 movably connected (such as pivoted) to the sideplate 322 of the second bracket 310. The blocking element 328 comprisesa guiding part 330 and a blocking part 334. The guiding part 330 has aninclined guiding feature 336. In addition, the slide rail assembly 300further comprises an elastic element 338 attached to one end of theextension frame 308. The extension frame 308 further comprises a firstsupporting feature 342 and at least one second supporting feature 344.The first supporting feature 342, such as a protrusion, is extended fromthe extension frame 308. The second supporting feature 344 is connectedto the side plate 322 of the second bracket 310 by correspondinglypenetrating a portion of at least one connection element 350 through atleast one extension hole 352 of the extension frame 308. Another portionof the at least one connection element 350 is blocked at one side of theextension frame 308 in order to movably mount the extension frame 308 tothe second bracket 310, such that the extension frame 308 can moverelative to the side plate 322 of the second bracket 310 within alimited range defined by the at least one extension hole 352.Preferably, the slide rail assembly 300 further comprises at least onespring 358 connected between the first supporting feature 342 of theextension frame 308 and the at least one connection element 350.

As shown in FIG. 16, the elastic element 338 is configured to provide anelastic force to hold the blocking element 328 at a first position P1relative to the second bracket 310. In the present embodiment, theelastic element 338 abuts against the guiding feature 336 of theblocking element 328 and works as a contact feature of the extensionframe 308. The elastic element 338 provides an elastic force to theguiding feature 336 of the guiding part 330 of the blocking element 328,such that the blocking part 334 of the blocking element 328 is held atthe first position P1 relative to the mounting element 326 (or the endplate 324) of the second bracket 310 in response to the elastic force ofthe elastic element 338. Therefore, the blocking part 334 of theblocking element 328 corresponds to or faces toward the second post 362to ensure that the second bracket 310 is not detachable from the secondpost 362.

As shown in FIG. 17, after detaching the first bracket of the slide railassembly 300 from the first post of the rack (not shown), the extensionframe 308 is pulled out along a direction F1 (such as a directionopposite to a direction toward the second post 362) to move to apredetermined position, such that the elastic force of the elasticelement 338 is continuously applied to push the guiding feature 336 ofthe guiding part 330 of the blocking element 328 harder. Meanwhile, theblocking element 328 is driven to rotate in response to a movement ofthe elastic element 338 of the extension frame 308 when applying theelastic force to the guiding feature 336 of the blocking element 328, soas to move the blocking part 334 of the blocking element 328 from thefirst position P1 to a second position P2 relative to the mountingelement 326, such that the second bracket 310 can be detached from thesecond post 362. According to such arrangement, a user standing in frontof the first post of the rack can detach the slide rail assembly fromthe first post and the second post, so as to allow the user to operateconveniently and quickly.

FIG. 18 is a diagram showing a slide rail assembly 400 according to afourth embodiment of the present invention. The slide rail assembly 400comprises a rail element 402, a first bracket (not shown), a supportingframe 406, an extension frame 408 and a second bracket 410. Thesupporting frame 406 is fixedly mounted to the rail element 402 as apart of the rail element 402. The extension frame 408 is movably mountedto the supporting frame 406. The second bracket 410 is mounted to theextension frame 408.

FIG. 19 further shows the second bracket 410 comprising a side plate422, an end plate 424 substantially perpendicularly extended from an endpart of the side plate 422, and at least one mounting element 426mounted to the end plate 424. The slide rail assembly 400 furthercomprises at least one blocking element 428 movably connected (such aspivoted) to the side plate 422 of the second bracket 410. The blockingelement 428 comprises a guiding part 430, a contact part 432 and ablocking part 434. The guiding part 430 has an inclined guiding feature436. In addition, the slide rail assembly 400 further comprises anelastic element 438 attached to the side plate 422 of the second bracket410. One end of the extension frame 408 is arranged with a rod-shapedcontact feature 440 corresponding to the guiding feature 436 of theblocking element 428. The extension frame 408 further comprises a firstsupporting feature 442 and at least one second supporting feature 444.The first supporting feature 442, such as a protrusion, is extended fromthe extension frame 408. The second supporting feature 444 is connectedto the side plate 422 of the second bracket 410 by correspondinglypenetrating a portion of at least one connection element 450 through atleast one extension hole 452 of the extension frame 408. Another portionof the at least one connection element 450 is blocked at one side of theextension frame 408 in order to movably mount the extension frame 408 tothe second bracket 410. Therefore, the extension frame 408 can moverelative to the side plate 422 of the second bracket 410 within alimited range defined by the at least one extension hole 452. The sliderail assembly 400 can further comprise at least one spring 458 connectedbetween the first supporting feature 442 of the extension frame 408 andthe at least one connection element 450.

As shown in FIG. 20, the elastic element 438 is configured to provide anelastic force to hold the blocking element 428 at a first positionrelative to the second bracket 410. In the present embodiment, theelastic element 438 provides an elastic force to the contact part 432 ofthe blocking element 428, such that the blocking part 434 of theblocking element 428 is held at the first position P1 relative to themounting element 426 (or the endplate 424) of the second bracket 410 inresponse to the elastic force of the elastic element 438. Therefore, theblocking part 434 of the blocking element 428 corresponds to or facestoward the second post 462 to ensure that the second bracket 410 is notdetachable from the second post 462.

As shown in FIG. 21, after detaching the first bracket of the slide railassembly 400 from the first post of the rack (not shown), the extensionframe 408 is pulled out to move along a direction F1 (such as adirection opposite to a direction toward the second post 462), such thatthe contact feature 440 of the extension frame 408 abuts against theguiding feature 436 of the guiding part 430 of the blocking element 428and is moved to a predetermined position. Meanwhile, the blockingelement 428 is driven to rotate in response to a movement of theextension frame 408, so as to move the blocking part 434 of the blockingelement 428 from the first position P1 to a second position P2 relativeto the mounting element 426, such that the second bracket 410 can bedetached from the second post 462. According to such arrangement, a userstanding in front of the first post of the rack can detach the sliderail assembly from the first post and the second post, so as to allowthe user to operate conveniently and quickly.

Those skilled in the art will readily observe that numerousmodifications and alterations of the device and method may be made whileretaining the teachings of the invention. Accordingly, the abovedisclosure should be construed as limited only by the metes and boundsof the appended claims.

What is claimed is:
 1. A slide rail assembly, configured to be mountedto a first post and a second post of a rack, the slide rail assemblycomprising: a rail element; a first bracket mounted to the rail elementand configured to be mounted to the first post of the rack; an extensionframe movable relative to the rail element; a second bracket mounted tothe extension frame and configured to be mounted to the second post ofthe rack; a blocking element movably connected to the second bracket;and an elastic element configured to provide an elastic force to holdthe blocking element at a first position relative to the second bracket;wherein when the extension frame is moved along a direction opposite toa direction toward the second post for pushing the blocking element torotate from the first position to a second position, the second bracketis detachable from the second post.
 2. The slide rail assembly of claim1, wherein the second bracket comprises a side plate, an end platesubstantially perpendicularly extended from the side plate, and at leastone mounting element mounted to the end plate, the blocking element ispivoted to the side plate of the second bracket and comprises a firstguiding feature, the extension frame comprises a contact feature, theelastic element is configured to provide the elastic force to drive thecontact feature of the extension frame to abut against the first guidingfeature of the blocking element, for holding the blocking element at thefirst position relative to the second bracket.
 3. The slide railassembly of claim 2, wherein the blocking element further comprises asecond guiding feature and a blocking part, the first guiding featureand the second guiding feature of the blocking element have differentangles of inclination, the contact feature of the extension frame isinclined, when the blocking element is driven to rotate in response to amovement of the contact feature of the extension frame when abuttingagainst the second guiding feature, the blocking part of the blockingelement is moved from the first position to the second position relativeto the mounting element of the second bracket.
 4. The slide railassembly of claim 2, wherein one of the extension frame and the secondbracket further comprises at least one extension hole, the slide railassembly further comprises at least one connection element passingthrough the at least one extension hole for movably mounting theextension frame to the second bracket, the elastic element is connectedbetween the at least one connection element and the extension frame. 5.The slide rail assembly of claim 1, wherein the second bracket comprisesa side plate, an end plate substantially perpendicularly extended fromthe side plate, and at least one mounting element mounted to the endplate, the blocking element is pivoted to the side plate of the secondbracket and comprises a guiding feature and a blocking part, the guidingfeature of the blocking element is inclined, the elastic element isattached to the extension frame for providing the elastic force to theguiding feature of the blocking element, when the blocking element isdriven to rotate in response to a movement of the elastic element whenapplying the elastic force to the guiding feature, the blocking part ofthe blocking element is moved from the first position to the secondposition relative the mounting element of the second bracket.
 6. Theslide rail assembly of claim 5, wherein one of the extension frame andthe second bracket further comprises at least one extension hole, theslide rail assembly further comprises at least one connection elementpassing through the at least one extension hole for movably mounting theextension frame to the second bracket, and at least one spring connectedbetween the at least one connection element and the extension frame. 7.The slide rail assembly of claim 1, wherein the second bracket comprisesa side plate, an end plate substantially perpendicularly extended fromthe side plate, and at least one mounting element mounted to the endplate, the blocking element is pivoted to the side plate of the secondbracket and comprises a contact part and a blocking part, the elasticelement is attached to the side plate of the second bracket for abuttingagainst the blocking element, the blocking part of the blocking elementis held at the first position relative to the mounting element of thesecond bracket in response to the elastic force of the elastic element.8. The slide rail assembly of claim 7, wherein the blocking elementcomprises a guiding feature, the guiding feature is inclined, theextension frame comprises a contact feature, the contact feature is arod-shaped object for abutting against the guiding feature of theblocking element, when the blocking element is driven to rotate inresponse to a movement of the contact feature of the extension framewhen abutting against the guiding feature, the blocking part of theblocking element is moved from the first position to the second positionrelative to the mounting element of the second bracket.
 9. The sliderail assembly of claim 7, wherein one of the extension frame and thesecond bracket further comprises at least one extension hole, the sliderail assembly further comprises at least one connection element passingthrough the at least one extension hole for movably mounting theextension frame to the second bracket.
 10. The slide rail assembly ofclaim 9, further comprising at least one spring connected between the atleast one connection element and the extension frame.
 11. A slide railassembly, configured to be mounted to a first post and a second post ofa rack, the slide rail assembly comprising: a rail element; a firstbracket mounted to the rail element and configured to be mounted to thefirst post of the rack; an extension frame movable relative to the railelement; a second bracket mounted to the extension frame and configuredto be mounted to the second post of the rack; a blocking element movablyconnected to the second bracket; and an elastic element configured toprovide an elastic force to hold the blocking element at a firstposition relative to the second bracket; wherein when the extensionframe is moved along a direction opposite to a direction toward thesecond post for pushing the blocking element to move from the firstposition to a second position, the second bracket is detachable from thesecond post; wherein one of the extension frame and the second bracketfurther comprises at least one extension hole, the slide rail assemblyfurther comprises at least one connection element passing through the atleast one extension hole for movably mounting the extension frame to thesecond bracket and at least one spring connected between the at leastone connection element and the extension frame.
 12. The slide railassembly of claim 11, wherein the second bracket comprises a side plate,an end plate substantially perpendicularly extended from the side plate,at least one mounting element mounted to the end plate, the blockingelement is pivoted to the side plate of the second bracket and comprisesa contact part, a blocking part and a guiding feature, the elasticelement is attached to the side plate of the second bracket forproviding the elastic force to the contact part of the blocking element,the blocking part of the blocking element is held at the first positionrelative to the mounting element of the second bracket in response tothe elastic force of the elastic element, the extension frame comprisesa contact feature for abutting against the guiding feature of theblocking element, and one of the guiding feature of the blocking elementand the contact feature of the extension frame is inclined, when theblocking element is driven to rotate in response to a movement of thecontact feature of the extension frame when abutting against the guidingfeature, the blocking part of the blocking element is moved from thefirst position to the second position relative to the mounting elementof the second bracket.
 13. A slide rail assembly, configured to bemounted to a first post and a second post of a rack, the slide railassembly comprising: a rail element; a first bracket mounted to the railelement and configured to be mounted to the first post of the rack; anextension frame movable relative to the rail element; a second bracketmounted to the extension frame and configured to be mounted to thesecond post of the rack; a blocking element movably connected to thesecond bracket; and an elastic element configured to provide an elasticforce to hold the blocking element at a first position relative to thesecond bracket; wherein when the extension frame is moved along adirection opposite to a direction toward the second post for pushing theblocking element to move from the first position to a second position,the second bracket is detachable from the second post; wherein thesecond bracket comprises a side plate, an end plate substantiallyperpendicularly extended from the side plate, and at least one mountingelement mounted to the end plate, the blocking element is pivoted to theside plate of the second bracket and comprises a contact part and ablocking part, the elastic element is attached to the side plate of thesecond bracket for providing the elastic force to the contact part ofthe blocking element, the blocking part of the blocking element is heldat the first position relative to the mounting element of the secondbracket in response to the elastic force of the elastic element; whereinthe blocking element further comprises a guiding feature, the extensionframe comprises a contact feature for abutting against the guidingfeature of the blocking element, one of the guiding feature of theblocking element and the contact feature of the extension frame isinclined, when the blocking element is driven to rotate in response to amovement of the contact feature of the extension frame when abuttingagainst the guiding feature, the blocking part of the blocking elementis moved from the first position to the second position relative to themounting element of the second bracket; wherein one of the extensionframe and the second bracket further comprises at least one extensionhole, the slide rail assembly further comprises at least one connectionelement passing through the at least one extension hole for movablymounting the extension frame to the second bracket.